Home / 20,004.20-29,982.30-8,887.40

Finding the Fourth Proportional to 20,004.20, 29,982.30 and 8,887.40

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Solution

The fourth proportional to 20,004.20, 29,982.30 and 8,887.40 is: 13,320.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,004.20 : 29,982.30 = 8,887.40 : x
  2. Step 2: Convert to fraction form
    20,004.20/29,982.30 = 8,887.40/x
  3. Step 3: Cross multiply
    20,004.20x = 29,982.30 × 8,887.40
  4. Step 4: Simplify right side
    20,004.20x = 266,464,693.02
  5. Step 5: Solve for x
    x = 266,464,693.02/20,004.20
  6. Step 6: Final answer
    x = 13,320.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.